标题: 求助GWD1-Q15 [打印本页] 作者: kuke2222 时间: 2010-8-6 17:41 标题: 求助GWD1-Q15 In parts of South America, vitamin-A deficiency is a serious health problem, especially among children.In one region, agriculturists are attempting to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in beta-carotene, which the body converts into vitamin A.The plan has good chances of success, since sweet potato is a staple of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene.
Which of the following, if true, most strongly supports the prediction that the plan will succeed?
A.The growing conditions required by the varieties of sweet potato currently cultivated in the region are conditions in which SPK004 can flourish.
B.The flesh of SPK004 differs from that of the currently cultivated sweet potatoes in color and texture, so traditional foods would look somewhat different when prepared from SPK004.
C.There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.
D.The varieties of sweet potato currently cultivated in the region contain some important nutrients that are lacking in SPK004.
E.There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do. 我选的是C，答案是A，请那位牛人大仙帮忙解答一下吧？作者: fengshou 时间: 2010-8-6 22:33
题目问的是以下哪个条件能让计划会成功这一预言成立。
agriculturists提出一个plan就是说让农民伯伯种这个土豆。。然后可以提高小孩子的维A blablabla不管它 然后题目的问题就是哪个选项可以支持这个plan会成功 “most strongly supports the prediction that the plan will succeed?”
